Pick up the Zombie Survival Guide by Max Brooks. One of the best books I own.

Oh, and 96%

...reading the guide actually helped! The trick is, stay light, stay quiet, stay fast. There's a lot of options about "Grab everything" and "take more guns/ammo" and "help people." Your first instinct would be "load up! It'll all help!" When in fact, this will get you freaking killed. It might be nice to have more gas cans or some quick energy, but they weight you down and make noise/smells.

My logic was take the pickup and as much ammo as I could get. My party and I are getting the hell out of Dodge, and NOTHING is stopping us. Some light armor, some extra gas, etc. In any case, the only people in my party are people that can shoot well.